Grain-drill.



No. 673,278. Patented Apr. 30, |90I. C. H. MASUN.

GRAIN DRILL.

. (Application filed Feb. 21, 1901,)

(No Model.) 2 Sheets-Sheet l.

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Patented Apr. 30, I90I. I c. H. MASON.

GRAIN DRILL.

(Application med Feb. 21, 1901.1

2 Sheets-Shut 2-.

(No Model.)

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Hoo L'mao., WASHINGTON n c i n?) 1.5 E

@w/bton@ l UNITED STATES PATENT OFFICE.

CHARLES H. MASON, OF SHORTSVILLE, NEW YORK, ASSIGNOR TO THE EMPIRE DRILL COMPANY, OF NEW YORK.

DRILL.

SPEGIFICA TION forming parli 0f LettersPatent N0. 673,278, dated. April 30, 1901. Application iiled February 21, 1901. Serial No. 48,266. (No model.)

Ll'o LLL/f whom, t may concern.-

Be it knownthatl, CHARLES I-I. MASON, of Shorrsville, county of Ontario, and State of New York, have invented a new and useful Improvement in Grain-Drills, of which the following is a specification.

Thisinvention has reference to grain-drills, and relates more particularly to the mechanism for applying a spring-pressure to the runners or furrowopeners.

The invention consists in various improvements in the mechanism for this purpose, having in view simplicity of construction, effectiveness in operation, and economy in production.

The invention consist-s also in the details of construction and combination of parts hereinafter described and claimed.

In the accompanying drawings, Figure 1 is a perspective view of a furrow-opener and its connected drabars, showing my improved depressing mechanism applied thereto. Fig. 2 is a side elevation of the same, showing its connection with the frame of the machine..

Fig. 3 is a top plan view of the furrow-opener and operating mechanism. Fig. 4 is a transverse vertical sectional elevation on the line o. o. of Fig. 2 looking forward.

Referring to the drawings, 1 represents the frame of the machine, which is of rectangular form and is adapted to give supportv to the usual seed-hopper, (not shown,) from which the seed is discharged into seed-tubes 2, arranged at intervals beneath the hopper.` The seed-tubes are connected at their lowerV ends to the rear ends of runners or furrowopeners 3, from the forward ends of which are two drag-bars 4, extending upwardly and forwardly to the front of the frame, to which they are connected ih the manner presently to be described.

The'foregoing parts may be of the usual and ordinary construction, and except in so far as hereinafterindicated they form no part of the present invention.

In applying my invention I extend along the front of the frame a short distance in the rear of its front edge a horizontal bar 5, angular in crosssection, and as a means of cons necting the drag-bars to this horizontal barI provide the latter at intervals with depending arms 6, each with its upper end in the form of a clip 7, embracing the bar and held adjust-ably thereon by clamping-bolts 8, so that they may be adjusted laterally along the bar as occasion may demand. At theirlower ends the arms are each provided with an outwardly-extending lug or pin 9, by means of which the drag-bars are pivotally connected therewith, the bars being provided with holes to receive the said pins.

Erom this description it will be observed that the connected seed-tubes, furrow-openers, and drag-bars are arranged in gang side by side and pivotally connected with the frame at their forward ends, the result being that the runners may be raised or lowered in the usual manner to vary the depth of the planting.

In order that the runners may be held in the ground yieldingly, so as to readily override obstructions and follow inaccuracies in the level, I provide for each a depressing mechanism of improved construction, and as these several mechanisms for the gang of runners are identical a description of one will suce. The mechanism comprises two sti parallel pressure-bars 10, each formed in its forward end with a hole loosely encircling pivot pins or lugs 11,extending inwardly from the inner side of the arms 6 some distance above the outwardly-extending pins 9. At their rear ends the pressure-bars extend on opposite sides of the seed-tu be and beneath an annular shoulder 12 on its upper edge, in the rear of which they are pivoted to the lower end of a vertical link 13, jointed at its upper en'd to an arm 14., extending forwardly from a rock-shaft l5, mounted on the frame, the arrangement being such that by the rocking of the shaft the rear ends of the pressure-bars may be raised or lowered. About midway of their length the pressure-bars act on the upper end of a U-shaped fiat pressure-spring 16, firmly fixed at its lower end to a block 17, secured between the drag-bars. From this point the spring curves forwardly, upwardly, and rearwardly and has its upper end :fixed to a plate 18, bearing beneath the pressurebars and engaging over their upper edges, as

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tively lift the same, the parts turning o n the connection of the drag-bars with the arms as an axis.

It will be observed that the spring 16 is sustained wholly by the drag-bars and distant from their axis. Hence `when the bars are depressed there .will be a relative movement between the sameand the plate 18, the latter moving in a vertical line, while the bars will l move in the arc of a circle.

While the .operation of the rock-shaft will serve to elevate or depress all the runners simultaneously and while they are held inacti'on by thelocking of said shaft, each is permitted to yield or move vertically or independently subject to the pressure of its spring.

It will be understood that other means than thoseshown of elevating and depressing the pressure-bars may be employed and that ether means than the. engagement of the pressurebars with the seed-tube for elevating the runners maybe employed without departing from the limits of my invention, the essence of which resides in the novel combination of the pressure-bars, the drag-bars, and the intermediate spring and the improved arrangement of the same.

Having thus described my invention, what I claim is- 1. In combination with the fr ame,-drag bars jointed to the same to swing vertically, a pressure-bar movable vertically above the drag-bars, an intermediate spring sustained whelly by one of said members distant from its axis, and having a sliding contact with the other member, and means for depressing the pressure-bars.

2. In combination with the frame, dragbars ljointed thereto to swing vertically, a pressure-bar movable vertically above the drag-bars, an intermediate spring sustained wholly by the drag-bars distant from their axis and bearing on the pressure-bars, and means for depressing the pressure-bars.

3. In combination with the frame, dragbars pivoted at their forward ends thereto and movable vertically, pressure-bars jointed at their forward ends adjacent to the axis of the drag-bars,l a flat springsnstained by the dragbars distant from their axis and curved upwardly, forwardly and rearwardly and engaging beneath the pressure-bars, and means for depressing the latter.

4. In combination with the frame, afurrowopener, two drag-bars extending forwardly and upwardly therefrom and jointed at their forward ends to swing vertically', a block fixed between the drag-bars, a spring having its lower end fixed to the block, a pressure-bar movable vertically above the drag-bars and having a bearing on the spring, and means for depressing the pressure-bars.

5. In combination with the vertically-movable drag-bars, the vertically-movable pressure-bar above the same, and a spring sustained by the drag-bar with its upper end slidingly connected with the pressure-bar and means for depressing the pressnre-bar.

6. In combination with the `vertically-m ovyable drag-bars, the verticallymovable pressure-'bars above the same, a spring sustained at one end by thedrag-bars, a plate on the other end of Vthe ,spring bearing 4against the nndeisidesof the pressnrbars and engaging over thenpperedges of thesame.

7. The combination vwith the frame, of a su pporting-bar, arms sustained by the ber and adjustable along the-same, drag=bars pivoted at their forward ends tothe arms, pressurebars also pivoted to said armsan intermediate spring, and means for depressing the pressure-barsi ,8. The combination with theframe Qf arms sustained therebydragbars jointed tothe venter sides of said armfSypressnre-bars jointed tothenne-r ,Sides .of said arms, an intel'- mediate spring, and means for depressing the pressure-bars- 9- The Gombination. with the frame,4 nf arms sustained thereby and provided on theironter and inner Ysides-with projecting lugs, dragbars provided Ain their forward ends with holes loosely encircling the onterlngs, pressure-bars formed iny their forward endswith holes loosely. encirclingthe inner lugs, an intermediate spring, and means for depressing the pressure-bars.

10. The combination Awith the frame of depending arms, drag-bars piveted at their forward ends t0 ,Saidarmsn pressure-bars also pivoted at their forward ends to said arms above the axis of the drag-bars, an intermediate spring, and means for depressing the pressure-bars.

In testimony whereof I hereunto set my l1 an d,fthis 5th day of February, 1901, ,in the presence of two attesting witnesses.

`oHARLEs-H. MAsoN.

Witnesses:

HENRY O. KLEUCK, MILAN EGOODRIOH.

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